An easy way to spot a retard. Anyone who uses the word "chill" in any form deserves nothing less than social ostracism. Usually said by burnt out druggies or teenage cockwashers who are trying to sound "cool" and "hip" but just end up sounding mildly down syndromed. Also, usually said by someone when a person is angry, in an attempt to prevent what will inevitably be a shit-storm towards them that they probably deserve.

Jeff-"This house is so chill!!1!!"
Me-"That's it, we will never be friends"